BTC Trader: Bitcoin Arbitrage Made Easy
Arbitrage serves an important function in the Bitcoin economy. Thanks to the individuals and automated bots that actively look for price differences between the various Bitcoin exchanges and buy from one and sell to another if the price disparity ever becomes high enough for the transaction to be worth it, people who are buying or selling BTC for their own use can rest assured that they are paying roughly the same price no matter which exchange they go to. Arbitrage also promotes competition among exchanges; if the only people trading on exchanges were those who were actually seeking to convert their money from one currency to the other, there would not be enough volume on the smaller exchange to sustain them, and it would be very difficult for new entrants to gather up enough momentum to survive.